I’d support it. If something is worthy of drawing attention to, it’s worth taking a screenshot and sharing that - preferably with a backup to Wayback Machine.

There’s no need to drive traffic to or engagement with X imo, even if it’s relatively minimal.

Same for Meta products really, though idk if Instagram has some defense against screenshots (I know there’s other photo-focused services that do, I’m just not on Instagram very often/recently at all so idk).